Load Specifications
Bullet Manufacturer:Nosler
Bullet Weight:260 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:.375 Weath. Mag. load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:105 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:6.0
Load data in caliber .375 Weath. Mag. with .375 | 260gr | Nosler AccuBond bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Ramshot Big Game.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 55,941 psi | 88% | 2615 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,244 psi | 85% | 2638 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 57,174 psi | 90% | 2677 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,970 psi | 88% | 2697 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 57,537 psi | 90% | 2674 fps | 96.3% |
| Accurate 4064 | <<locked>> | 96% | 56,753 psi | 89% | 2717 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,878 psi | 77% | 2680 fps | 98.4% |
| Accurate LT-30 | <<locked>> | 82% | 55,245 psi | 87% | 2559 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,651 psi | 87% | 2585 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 54,984 psi | 86% | 2707 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 96% | 55,869 psi | 88% | 2700 fps | 99.5% |
| ADI AR 2219 | <<locked>> | 82% | 56,217 psi | 88% | 2677 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 57,638 psi | 90% | 2710 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 54,085 psi | 85% | 2641 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,695 psi | 87% | 2759 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,085 psi | 85% | 2808 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 55,085 psi | 86% | 2720 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,622 psi | 87% | 2618 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 56,043 psi | 88% | 2743 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,211 psi | 76% | 2687 fps | 98.5% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 55,912 psi | 88% | 2835 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,084 psi | 53% | 2425 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,433 psi | 85% | 2559 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,462 psi | 85% | 2717 fps | 99.2% |
| Bofors RP3 | <<locked>> | 96% | 55,724 psi | 87% | 2736 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 56,420 psi | 88% | 2700 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 88% | 56,101 psi | 88% | 2648 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 56,724 psi | 89% | 2740 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 54,781 psi | 86% | 2779 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 84% | 54,868 psi | 86% | 2661 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 55,956 psi | 88% | 2687 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 57,188 psi | 90% | 2746 fps | 99% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 52,373 psi | 82% | 2733 fps | 96.5% |
| Hodgdon H4350ᴾ | <<locked>> | 100% | 57,261 psi | 90% | 2749 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 90% | 55,463 psi | 87% | 2717 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,367 psi | 70% | 2579 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 54,041 psi | 85% | 2743 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 53,534 psi | 84% | 2762 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,027 psi | 55% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 56,768 psi | 89% | 2717 fps | 99.9% |
| IMR 3031 | <<locked>> | 90% | 54,882 psi | 86% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,216 psi | 87% | 2684 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 92% | 55,825 psi | 87% | 2664 fps | 96.9% |
| IMR 4198 | <<locked>> | 84% | 55,854 psi | 88% | 2579 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 54,926 psi | 86% | 2680 fps | 96.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,528 psi | 73% | 2628 fps | 98% |
| IMR 4895 | <<locked>> | 94% | 57,464 psi | 90% | 2772 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 90% | 57,638 psi | 90% | 2710 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 54,360 psi | 85% | 2651 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,085 psi | 85% | 2684 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,839 psi | 86% | 2638 fps | 99.7% |
| Lovex S062 | <<locked>> | 94% | 54,824 psi | 86% | 2684 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,809 psi | 84% | 2674 fps | 97.9% |
| Lovex S070ᴾ | <<locked>> | 100% | 51,256 psi | 80% | 2654 fps | 96.3% |
| Norma 201 | <<locked>> | 92% | 57,145 psi | 90% | 2700 fps | 100% |
| Norma 202 | <<locked>> | 92% | 57,595 psi | 90% | 2703 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,172 psi | 86% | 2730 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 48,660 psi | 76% | 2674 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 94% | 55,622 psi | 87% | 2756 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 47,819 psi | 75% | 2664 fps | 96.3% |
| Ramshot TAC | <<locked>> | 88% | 54,563 psi | 86% | 2677 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 90% | 57,421 psi | 90% | 2746 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 86% | 55,361 psi | 87% | 2667 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,375 psi | 55% | 1650 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 57,203 psi | 90% | 2690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,201 psi | 85% | 2680 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 56,275 psi | 88% | 2805 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 55,709 psi | 87% | 2838 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,573 psi | 76% | 2703 fps | 98.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,298 psi | 77% | 2720 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 88% | 54,694 psi | 86% | 2638 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 57,508 psi | 90% | 2697 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 55,347 psi | 87% | 2723 fps | 99.9% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 56,420 psi | 88% | 2700 fps | 96.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,809 psi | 84% | 2674 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,085 psi | 85% | 2684 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,824 psi | 86% | 2684 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 51,256 psi | 80% | 2654 fps | 96.3% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 57,319 psi | 90% | 2671 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 56,507 psi | 89% | 2687 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 57,406 psi | 90% | 2785 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,768 psi | 89% | 2641 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,333 psi | 88% | 2703 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 56,782 psi | 89% | 2726 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,651 psi | 87% | 2602 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,376 psi | 87% | 2598 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 54,491 psi | 85% | 2631 fps | 96.6% |
| Somchem S321 | <<locked>> | 86% | 55,419 psi | 87% | 2697 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 54,708 psi | 86% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 55,709 psi | 87% | 2697 fps | 99.7% |
| Somchem S355 | <<locked>> | 98% | 55,956 psi | 88% | 2723 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,308 psi | 68% | 2628 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 86% | 55,593 psi | 87% | 2572 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,651 psi | 87% | 2589 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 56,710 psi | 89% | 2664 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,389 psi | 85% | 2638 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 57,682 psi | 90% | 2707 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,126 psi | 80% | 2674 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 88% | 54,578 psi | 86% | 2661 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 56,072 psi | 88% | 2680 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,125 psi | 79% | 2677 fps | 98.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,274 psi | 57% | 2497 fps | 96% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,170 psi | 82% | 2664 fps | 99.8% |
| Winchester 748 | <<locked>> | 88% | 53,969 psi | 85% | 2707 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 52,373 psi | 82% | 2733 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 92% | 56,608 psi | 89% | 2736 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 43,758 psi | 69% | 2444 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,471 psi | 74% | 2543 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,172 psi | 57% | 2362 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,641 psi | 67% | 2500 fps | 99.9% |
| Accurate 2700 | <<locked>> | 92% | 53,998 psi | 85% | 2621 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 34,200 psi | 54% | 2349 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 36,956 psi | 58% | 2467 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 52,025 psi | 82% | 2516 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,417 psi | 82% | 2539 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,147 psi | 63% | 2454 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 34,243 psi | 54% | 2313 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 52,634 psi | 82% | 2631 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,163 psi | 66% | 2470 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 41,655 psi | 65% | 2467 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,936 psi | 77% | 2657 fps | 99.5% |
| Alliant Power Pro 2000-MR | 66.9 gr | 80% | 36,172 psi | 57% | 2461 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,431 psi | 52% | 2333 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,400 psi | 77% | 2536 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,998 psi | 56% | 2388 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 92% | 37,710 psi | 59% | 2477 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 84% | 32,924 psi | 52% | 2392 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,155 psi | 50% | 2375 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,082 psi | 80% | 2516 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,044 psi | 61% | 2454 fps | 96.2% |
| Bofors RP3 | <<locked>> | 80% | 32,764 psi | 51% | 2329 fps | 96.6% |
| Bofors RP7 | <<locked>> | 96% | 49,806 psi | 78% | 2598 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,251 psi | 69% | 2467 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,422 psi | 63% | 2484 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,425 psi | 70% | 2612 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 80% | 48,022 psi | 75% | 2566 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,849 psi | 77% | 2589 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,609 psi | 61% | 2438 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 98% | 48,907 psi | 77% | 2677 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 98% | 53,679 psi | 84% | 2700 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 40,422 psi | 63% | 2467 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,474 psi | 51% | 2329 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,274 psi | 57% | 2431 fps | 97.7% |
| Hodgdon Superformance | <<locked>> | 98% | 49,908 psi | 78% | 2703 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,034 psi | 41% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,885 psi | 61% | 2421 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 39,610 psi | 62% | 2470 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,911 psi | 56% | 2346 fps | 96% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,414 psi | 77% | 2566 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 49,748 psi | 78% | 2497 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 48,660 psi | 76% | 2582 fps | 95.3% |
| IMR 4831 | <<locked>> | 92% | 35,940 psi | 56% | 2425 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 36,811 psi | 58% | 2418 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 80% | 42,163 psi | 66% | 2470 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 47,355 psi | 74% | 2549 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 38,667 psi | 61% | 2438 fps | 99.5% |
| Lovex S060 | <<locked>> | 80% | 40,712 psi | 64% | 2402 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 35,636 psi | 56% | 2352 fps | 97.8% |
| Lovex S065 | <<locked>> | 92% | 42,235 psi | 66% | 2480 fps | 95.4% |
| Lovex S070 | <<locked>> | 98% | 48,051 psi | 75% | 2602 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 39,305 psi | 62% | 2415 fps | 98.6% |
| Norma 202 | <<locked>> | 80% | 39,479 psi | 62% | 2428 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 35,360 psi | 55% | 2379 fps | 96.4% |
| Norma URP | <<locked>> | 92% | 37,536 psi | 59% | 2467 fps | 95.4% |
| Ramshot Big Game | 66.9 gr | 80% | 34,780 psi | 55% | 2385 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 98% | 44,889 psi | 70% | 2612 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 41,989 psi | 66% | 2464 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,176 psi | 65% | 2484 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,527 psi | 71% | 2513 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,281 psi | 41% | 1473 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,239 psi | 74% | 2549 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,686 psi | 70% | 2523 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,246 psi | 58% | 2477 fps | 96.3% |
| ReloadSwiss RS 60 | 65.9 gr | 80% | 30,763 psi | 48% | 2349 fps | 97.3% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 39,479 psi | 62% | 2536 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 43,192 psi | 68% | 2605 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 43,265 psi | 68% | 2464 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,550 psi | 59% | 2372 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 80% | 30,821 psi | 48% | 2277 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 96% | 49,806 psi | 78% | 2598 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,235 psi | 66% | 2480 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,667 psi | 61% | 2438 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 35,636 psi | 56% | 2352 fps | 97.8% |
| Shooters World SW4350 | <<locked>> | 98% | 48,051 psi | 75% | 2602 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,951 psi | 78% | 2566 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,895 psi | 83% | 2641 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 34,069 psi | 53% | 2375 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,111 psi | 79% | 2552 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,089 psi | 63% | 2438 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,725 psi | 61% | 2428 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,973 psi | 64% | 2382 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,765 psi | 53% | 2254 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,543 psi | 75% | 2526 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 45,310 psi | 71% | 2543 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 40,408 psi | 63% | 2385 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,798 psi | 62% | 2441 fps | 97.5% |
| Somchem S355 | <<locked>> | 80% | 31,850 psi | 50% | 2287 fps | 95.6% |
| Somchem S365 | <<locked>> | 86% | 27,847 psi | 44% | 2264 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 46,369 psi | 73% | 2448 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,133 psi | 64% | 2382 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,535 psi | 57% | 2362 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,318 psi | 58% | 2365 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 30,211 psi | 47% | 2231 fps | 96.6% |
| Vihtavuori N160 | <<locked>> | 90% | 37,086 psi | 58% | 2421 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 42,148 psi | 66% | 2464 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 35,911 psi | 56% | 2356 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 92% | 38,682 psi | 61% | 2474 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 98% | 33,997 psi | 53% | 2444 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,982 psi | 52% | 2306 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 41,147 psi | 64% | 2500 fps | 99.4% |
| Winchester 760 | <<locked>> | 98% | 49,081 psi | 77% | 2680 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,855 psi | 59% | 2428 fps | 97.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 106 powders for .375 Weath. Mag. loaded with the .375 | 260gr | Nosler AccuBond. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,838 fps; across all powders the maximum-charge window runs from 1,614 fps to 2,838 fps. Accurate 4350 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 260.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Ramshot Big Game rank at the top here: for .375 Weath. Mag. with the .375 | 260gr | Nosler AccuBond they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.